An index to the earlier volumes is included in "A classified index to the Transactions, Proceedings, and Quarterly journal of the Geological Society of London by G. W. Ormerod," the 1st edition of which was published 1858: 2d edition 1870; 1st suppl. 1876; 2d suppl. 1883; 3d suppl. 1890
Vols. 2-29 each in 2 parts: pt. 2, "Miscellaneous."
Includes Proceedings of the society (separately paged, beginning with v. 30)